erc_item.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
 
#include "wx/html/m_templ.h"
#include "wx/html/styleparams.h"
#include <erc/erc.h>
#include <eda_draw_frame.h>
#include <marker_base.h>
#include <schematic.h>
#include <sch_edit_frame.h>
#include <i18n_utility.h>
#include <units_provider.h>
 
 
// These, being statically-defined, require specialized I18N handling.
// We don't translate on initialization and instead do it in the getters.
 
// NOTE: Avoid changing the settings key for an ERC item after it has been created
 
ERC_ITEM ERC_ITEM::heading_connections( 0, _HKI( "Connections" ), "" );
ERC_ITEM ERC_ITEM::heading_conflicts( 0, _HKI( "Conflicts" ), "" );
ERC_ITEM ERC_ITEM::heading_misc( 0, _HKI( "Miscellaneous" ), "" );
ERC_ITEM ERC_ITEM::heading_internal( 0, "", "" );
 
ERC_ITEM ERC_ITEM::duplicateSheetName( ERCE_DUPLICATE_SHEET_NAME,
        _HKI( "Duplicate sheet names within a given sheet" ),
        wxT( "duplicate_sheet_names" ) );
 
ERC_ITEM ERC_ITEM::endpointOffGrid( ERCE_ENDPOINT_OFF_GRID,
        _HKI( "Symbol pin or wire end off connection grid" ),
        wxT( "endpoint_off_grid" ) );
 
ERC_ITEM ERC_ITEM::pinNotConnected( ERCE_PIN_NOT_CONNECTED,
        _HKI( "Pin not connected" ),
        wxT( "pin_not_connected" ) );
 
ERC_ITEM ERC_ITEM::pinNotDriven( ERCE_PIN_NOT_DRIVEN,
        _HKI( "Input pin not driven by any Output pins" ),
        wxT( "pin_not_driven" ) );
 
ERC_ITEM ERC_ITEM::powerpinNotDriven( ERCE_POWERPIN_NOT_DRIVEN,
        _HKI( "Input Power pin not driven by any Output Power pins" ),
        wxT( "power_pin_not_driven" ) );
 
ERC_ITEM ERC_ITEM::duplicatePinError( ERCE_DUPLICATE_PIN_ERROR,
        _HKI( "Duplicate pins with different nets" ),
        wxT( "duplicate_pins" ) );
 
ERC_ITEM ERC_ITEM::pinTableWarning( ERCE_PIN_TO_PIN_WARNING,
        _HKI( "Conflict problem between pins" ),
        wxT( "pin_to_pin" ) );
 
ERC_ITEM ERC_ITEM::pinTableError( ERCE_PIN_TO_PIN_ERROR,
        _HKI( "Conflict problem between pins" ),
        wxT( "pin_to_pin" ) );
 
ERC_ITEM ERC_ITEM::genericWarning( ERCE_GENERIC_WARNING,
        _HKI( "Warning" ),
        wxT( "generic-warning" ) );
 
ERC_ITEM ERC_ITEM::genericError( ERCE_GENERIC_ERROR,
        _HKI( "Error" ),
        wxT( "generic-error" ) );
 
ERC_ITEM ERC_ITEM::hierLabelMismatch( ERCE_HIERACHICAL_LABEL,
        _HKI( "Mismatch between hierarchical labels and sheet pins" ),
        wxT( "hier_label_mismatch" ) );
 
ERC_ITEM ERC_ITEM::fourWayJunction( ERCE_FOUR_WAY_JUNCTION,
        _HKI( "Four connection points are joined together" ),
        wxT( "four_way_junction" ) );
 
ERC_ITEM ERC_ITEM::labelMultipleWires( ERCE_LABEL_MULTIPLE_WIRES,
        _HKI( "Label connects more than one wire" ),
        wxT( "label_multiple_wires" ) );
 
ERC_ITEM ERC_ITEM::noConnectConnected( ERCE_NOCONNECT_CONNECTED,
        _HKI( "A pin with a \"no connection\" flag is connected" ),
        wxT( "no_connect_connected" ) );
 
ERC_ITEM ERC_ITEM::noConnectDangling( ERCE_NOCONNECT_NOT_CONNECTED,
        _HKI( "Unconnected \"no connection\" flag" ),
        wxT( "no_connect_dangling" ) );
 
ERC_ITEM ERC_ITEM::labelDangling( ERCE_LABEL_NOT_CONNECTED,
        _HKI( "Label not connected" ),
        wxT( "label_dangling" ) );
 
ERC_ITEM ERC_ITEM::isolatedPinLabel( ERCE_LABEL_SINGLE_PIN,
        _HKI( "Label connected to only one pin" ),
        wxT( "isolated_pin_label" ) );
 
ERC_ITEM ERC_ITEM::similarLabels( ERCE_SIMILAR_LABELS,
        _HKI( "Labels are similar (lower/upper case difference only)"),
        wxT( "similar_labels" ) );
 
ERC_ITEM ERC_ITEM::similarPower( ERCE_SIMILAR_POWER,
        _HKI( "Power pins are similar (lower/upper case difference only)"),
        wxT( "similar_power" ) );
 
ERC_ITEM ERC_ITEM::similarLabelAndPower( ERCE_SIMILAR_LABEL_AND_POWER,
        _HKI( "Power pin and label are similar (lower/upper case difference only)"),
        wxT( "similar_label_and_power" ) );
 
ERC_ITEM ERC_ITEM::singleGlobalLabel( ERCE_SINGLE_GLOBAL_LABEL,
        _HKI( "Global label only appears once in the schematic"),
        wxT( "single_global_label" ) );
 
ERC_ITEM ERC_ITEM::sameLocalGlobalLabel( ERCE_SAME_LOCAL_GLOBAL_LABEL,
        _HKI( "Local and global labels have same name" ),
        wxT( "same_local_global_label" ) );
 
ERC_ITEM ERC_ITEM::sameLocalGlobalPower( ERCE_SAME_LOCAL_GLOBAL_POWER,
                                         _HKI( "Local and global power symbols have same name" ),
                                         wxT( "same_local_global_power" ) );
 
ERC_ITEM ERC_ITEM::differentUnitFootprint( ERCE_DIFFERENT_UNIT_FP,
        _HKI( "Different footprint assigned in another unit of the symbol" ),
        wxT( "different_unit_footprint" ) );
 
ERC_ITEM ERC_ITEM::differentUnitNet( ERCE_DIFFERENT_UNIT_NET,
        _HKI( "Different net assigned to a shared pin in another unit of the symbol" ),
        wxT( "different_unit_net" ) );
 
ERC_ITEM ERC_ITEM::busDefinitionConflict( ERCE_BUS_ALIAS_CONFLICT,
        _HKI( "Conflict between bus alias definitions across schematic sheets" ),
        wxT( "bus_definition_conflict" ) );
 
ERC_ITEM ERC_ITEM::multipleNetNames( ERCE_DRIVER_CONFLICT,
        _HKI( "More than one name given to this bus or net" ),
        wxT( "multiple_net_names" ) );
 
ERC_ITEM ERC_ITEM::netNotBusMember( ERCE_BUS_ENTRY_CONFLICT,
        _HKI( "Net is graphically connected to a bus but not a bus member" ),
        wxT( "net_not_bus_member" ) );
 
ERC_ITEM ERC_ITEM::busToBusConflict( ERCE_BUS_TO_BUS_CONFLICT,
        _HKI( "Buses are graphically connected but share no bus members" ),
        wxT( "bus_to_bus_conflict" ) );
 
ERC_ITEM ERC_ITEM::busToNetConflict( ERCE_BUS_TO_NET_CONFLICT,
        _HKI( "Invalid connection between bus and net items" ),
        wxT( "bus_to_net_conflict" ) );
 
ERC_ITEM ERC_ITEM::groundPinNotGround( ERCE_GROUND_PIN_NOT_GROUND,
        _HKI( "Ground pin not connected to ground net" ),
        wxT( "ground_pin_not_ground" ) );
 
ERC_ITEM ERC_ITEM::stackedPinName( ERCE_STACKED_PIN_SYNTAX,
        _HKI( "Pin name resembles stacked pin" ),
        wxT( "stacked_pin_name" ) );
 
ERC_ITEM ERC_ITEM::fieldNameWhitespace( ERCE_FIELD_NAME_WHITESPACE,
        _HKI( "Field name has leading or trailing whitespace" ),
        wxT( "field_name_whitespace" ) );
 
ERC_ITEM ERC_ITEM::emptyLabelName( ERCE_EMPTY_LABEL_NAME, _HKI( "Label has an empty name" ),
                                   wxT( "empty_label_name" ) );
 
ERC_ITEM ERC_ITEM::pinMapBadPad( ERCE_PIN_MAP_BAD_PAD,
                                 _HKI( "Pin map references a pad that does not exist on the footprint" ),
                                 wxT( "pin_map_bad_pad" ) );
 
ERC_ITEM ERC_ITEM::pinMapUnmappedPin( ERCE_PIN_MAP_UNMAPPED_PIN,
                                      _HKI( "Connected pin is not mapped to any footprint pad" ),
                                      wxT( "pin_map_unmapped_pin" ) );
 
ERC_ITEM ERC_ITEM::pinMapDuplicatePad( ERCE_PIN_MAP_DUPLICATE_PAD,
                                       _HKI( "Two symbol pins are mapped to the same footprint pad" ),
                                       wxT( "pin_map_duplicate_pad" ) );
 
ERC_ITEM ERC_ITEM::pinMapStalePin( ERCE_PIN_MAP_STALE_PIN,
                                   _HKI( "Pin map references a pin number that no longer exists on the symbol" ),
                                   wxT( "pin_map_stale_pin" ) );
 
ERC_ITEM ERC_ITEM::unresolvedVariable( ERCE_UNRESOLVED_VARIABLE,
        _HKI( "Unresolved text variable" ),
        wxT( "unresolved_variable" ) );
 
ERC_ITEM ERC_ITEM::undefinedNetclass( ERCE_UNDEFINED_NETCLASS,
        _HKI( "Undefined netclass" ),
        wxT( "undefined_netclass" ) );
 
ERC_ITEM ERC_ITEM::simulationModelIssues( ERCE_SIMULATION_MODEL,
        _HKI( "SPICE model issue" ),
        wxT( "simulation_model_issue" ) );
 
ERC_ITEM ERC_ITEM::wireDangling( ERCE_WIRE_DANGLING,
        _HKI( "Wires not connected to anything" ),
        wxT( "wire_dangling" ) );
 
ERC_ITEM ERC_ITEM::libSymbolIssues( ERCE_LIB_SYMBOL_ISSUES,
        _HKI( "Library symbol issue" ),
        wxT( "lib_symbol_issues" ) );
 
ERC_ITEM ERC_ITEM::libSymbolMismatch( ERCE_LIB_SYMBOL_MISMATCH,
        _HKI( "Symbol doesn't match copy in library" ),
        wxT( "lib_symbol_mismatch" ) );
 
ERC_ITEM ERC_ITEM::footprintLinkIssues( ERCE_FOOTPRINT_LINK_ISSUES,
        _HKI( "Footprint link issue" ),
        wxT( "footprint_link_issues" ) );
 
ERC_ITEM ERC_ITEM::footprintFilters( ERCE_FOOTPRINT_FILTERS,
        _HKI( "Assigned footprint doesn't match footprint filters" ),
        wxT( "footprint_filter" ) );
 
ERC_ITEM ERC_ITEM::unannotated( ERCE_UNANNOTATED,
        _HKI( "Symbol is not annotated" ),
        wxT( "unannotated" ) );
 
ERC_ITEM ERC_ITEM::extraUnits( ERCE_EXTRA_UNITS,
        _HKI( "Symbol has more units than are defined" ),
        wxT( "extra_units" ) );
 
ERC_ITEM ERC_ITEM::missingUnits( ERCE_MISSING_UNIT,
        _HKI( "Symbol has units that are not placed" ),
        wxT( "missing_unit" ) );
 
ERC_ITEM ERC_ITEM::missingInputPin( ERCE_MISSING_INPUT_PIN,
        _HKI( "Symbol has input pins that are not placed" ),
        wxT( "missing_input_pin" ) );
 
ERC_ITEM ERC_ITEM::missingBidiPin( ERCE_MISSING_BIDI_PIN,
        _HKI( "Symbol has bidirectional pins that are not placed" ),
        wxT( "missing_bidi_pin" ) );
 
ERC_ITEM ERC_ITEM::missingPowerInputPin( ERCE_MISSING_POWER_INPUT_PIN,
        _HKI( "Symbol has power input pins that are not placed" ),
        wxT( "missing_power_pin" ) );
 
ERC_ITEM ERC_ITEM::differentUnitValue( ERCE_DIFFERENT_UNIT_VALUE,
        _HKI( "Units of same symbol have different values" ),
        wxT( "unit_value_mismatch" ) );
 
ERC_ITEM ERC_ITEM::duplicateReference( ERCE_DUPLICATE_REFERENCE,
        _HKI( "Duplicate reference designators" ),
        wxT( "duplicate_reference" ) );
 
ERC_ITEM ERC_ITEM::busEntryNeeded( ERCE_BUS_ENTRY_NEEDED,
        _HKI( "Bus Entry needed" ),
        wxT( "bus_entry_needed" ) );
 
ERC_ITEM ERC_ITEM::unconnectedWireEndpoint( ERCE_UNCONNECTED_WIRE_ENDPOINT,
        _HKI( "Unconnected wire endpoint" ),
        wxT( "unconnected_wire_endpoint" ) );
 
ERC_ITEM ERC_ITEM::variantSymbolInvalid( ERCE_VARIANT_SYMBOL_INVALID,
        _HKI( "Variant symbol not found in libraries" ),
        wxT( "variant_symbol_invalid" ) );
 
ERC_ITEM ERC_ITEM::variantSymbolIncompatible( ERCE_VARIANT_SYMBOL_INCOMPATIBLE,
        _HKI( "Variant symbol is not pin-compatible" ),
        wxT( "variant_symbol_incompatible" ) );
 
std::vector<std::reference_wrapper<RC_ITEM>> ERC_ITEM::allItemTypes(
        { ERC_ITEM::heading_connections, ERC_ITEM::pinNotConnected, ERC_ITEM::pinNotDriven, ERC_ITEM::powerpinNotDriven,
          ERC_ITEM::noConnectConnected, ERC_ITEM::noConnectDangling, ERC_ITEM::labelDangling,
          ERC_ITEM::isolatedPinLabel, ERC_ITEM::singleGlobalLabel, ERC_ITEM::sameLocalGlobalLabel,
          ERC_ITEM::sameLocalGlobalPower, ERC_ITEM::wireDangling, ERC_ITEM::busEntryNeeded, ERC_ITEM::endpointOffGrid,
          ERC_ITEM::fourWayJunction, ERC_ITEM::labelMultipleWires, ERC_ITEM::unconnectedWireEndpoint,
          ERC_ITEM::emptyLabelName,
 
          ERC_ITEM::heading_conflicts, ERC_ITEM::duplicateReference, ERC_ITEM::pinTableWarning,
          ERC_ITEM::differentUnitValue, ERC_ITEM::differentUnitFootprint, ERC_ITEM::differentUnitNet,
          ERC_ITEM::duplicateSheetName, ERC_ITEM::hierLabelMismatch, ERC_ITEM::multipleNetNames,
          ERC_ITEM::busDefinitionConflict, ERC_ITEM::busToBusConflict, ERC_ITEM::busToNetConflict,
          ERC_ITEM::netNotBusMember, ERC_ITEM::groundPinNotGround,
 
          ERC_ITEM::heading_misc, ERC_ITEM::stackedPinName, ERC_ITEM::fieldNameWhitespace, ERC_ITEM::pinMapBadPad,
          ERC_ITEM::pinMapUnmappedPin, ERC_ITEM::pinMapDuplicatePad, ERC_ITEM::pinMapStalePin, ERC_ITEM::unannotated,
          ERC_ITEM::unresolvedVariable, ERC_ITEM::undefinedNetclass, ERC_ITEM::simulationModelIssues,
          ERC_ITEM::similarLabels, ERC_ITEM::similarPower, ERC_ITEM::similarLabelAndPower,
          // Commented out until the logic for this element is coded
          // TODO: Add bus label syntax checking
          //                 ERC_ITEM::busLabelSyntax,
          ERC_ITEM::libSymbolIssues, ERC_ITEM::libSymbolMismatch, ERC_ITEM::footprintLinkIssues,
          ERC_ITEM::footprintFilters, ERC_ITEM::extraUnits, ERC_ITEM::missingUnits, ERC_ITEM::missingInputPin,
          ERC_ITEM::missingBidiPin, ERC_ITEM::missingPowerInputPin,
          ERC_ITEM::variantSymbolInvalid, ERC_ITEM::variantSymbolIncompatible,
 
          // ERC_ITEM types with no user-editable severities
          // NOTE: this MUST be the last grouping in the list!
          ERC_ITEM::heading_internal, ERC_ITEM::duplicatePinError, ERC_ITEM::pinTableWarning, ERC_ITEM::pinTableError,
          ERC_ITEM::genericWarning, ERC_ITEM::genericError } );
 
 
std::shared_ptr<ERC_ITEM> ERC_ITEM::Create( int aErrorCode )
{
    switch( aErrorCode )
    {
    case ERCE_DUPLICATE_SHEET_NAME:    return std::make_shared<ERC_ITEM>( duplicateSheetName );
    case ERCE_ENDPOINT_OFF_GRID:       return std::make_shared<ERC_ITEM>( endpointOffGrid );
    case ERCE_PIN_NOT_CONNECTED:       return std::make_shared<ERC_ITEM>( pinNotConnected );
    case ERCE_PIN_NOT_DRIVEN:          return std::make_shared<ERC_ITEM>( pinNotDriven );
    case ERCE_POWERPIN_NOT_DRIVEN:     return std::make_shared<ERC_ITEM>( powerpinNotDriven );
    case ERCE_DUPLICATE_PIN_ERROR:     return std::make_shared<ERC_ITEM>( duplicatePinError );
    case ERCE_PIN_TO_PIN_WARNING:      return std::make_shared<ERC_ITEM>( pinTableWarning );
    case ERCE_PIN_TO_PIN_ERROR:        return std::make_shared<ERC_ITEM>( pinTableError );
    case ERCE_GENERIC_WARNING:         return std::make_shared<ERC_ITEM>( genericWarning );
    case ERCE_GENERIC_ERROR:           return std::make_shared<ERC_ITEM>( genericError );
    case ERCE_HIERACHICAL_LABEL:       return std::make_shared<ERC_ITEM>( hierLabelMismatch );
    case ERCE_NOCONNECT_CONNECTED:     return std::make_shared<ERC_ITEM>( noConnectConnected );
    case ERCE_NOCONNECT_NOT_CONNECTED: return std::make_shared<ERC_ITEM>( noConnectDangling );
    case ERCE_FOUR_WAY_JUNCTION:       return std::make_shared<ERC_ITEM>( fourWayJunction );
    case ERCE_LABEL_MULTIPLE_WIRES:    return std::make_shared<ERC_ITEM>( labelMultipleWires );
    case ERCE_LABEL_NOT_CONNECTED:     return std::make_shared<ERC_ITEM>( labelDangling );
    case ERCE_SIMILAR_LABELS:          return std::make_shared<ERC_ITEM>( similarLabels );
    case ERCE_SIMILAR_POWER:           return std::make_shared<ERC_ITEM>( similarPower );
    case ERCE_SIMILAR_LABEL_AND_POWER: return std::make_shared<ERC_ITEM>( similarLabelAndPower );
    case ERCE_SINGLE_GLOBAL_LABEL:     return std::make_shared<ERC_ITEM>( singleGlobalLabel );
    case ERCE_SAME_LOCAL_GLOBAL_LABEL: return std::make_shared<ERC_ITEM>( sameLocalGlobalLabel );
    case ERCE_SAME_LOCAL_GLOBAL_POWER: return std::make_shared<ERC_ITEM>( sameLocalGlobalPower );
    case ERCE_DIFFERENT_UNIT_FP:       return std::make_shared<ERC_ITEM>( differentUnitFootprint );
    case ERCE_DIFFERENT_UNIT_NET:      return std::make_shared<ERC_ITEM>( differentUnitNet );
    case ERCE_BUS_ALIAS_CONFLICT:      return std::make_shared<ERC_ITEM>( busDefinitionConflict );
    case ERCE_DRIVER_CONFLICT:         return std::make_shared<ERC_ITEM>( multipleNetNames );
    case ERCE_BUS_ENTRY_CONFLICT:      return std::make_shared<ERC_ITEM>( netNotBusMember );
    case ERCE_BUS_TO_BUS_CONFLICT:     return std::make_shared<ERC_ITEM>( busToBusConflict );
    case ERCE_BUS_TO_NET_CONFLICT:     return std::make_shared<ERC_ITEM>( busToNetConflict );
    case ERCE_GROUND_PIN_NOT_GROUND:   return std::make_shared<ERC_ITEM>( groundPinNotGround );
    case ERCE_LABEL_SINGLE_PIN:        return std::make_shared<ERC_ITEM>( isolatedPinLabel );
    case ERCE_UNRESOLVED_VARIABLE:     return std::make_shared<ERC_ITEM>( unresolvedVariable );
    case ERCE_UNDEFINED_NETCLASS:      return std::make_shared<ERC_ITEM>( undefinedNetclass );
    case ERCE_SIMULATION_MODEL:        return std::make_shared<ERC_ITEM>( simulationModelIssues );
    case ERCE_WIRE_DANGLING:           return std::make_shared<ERC_ITEM>( wireDangling );
    case ERCE_LIB_SYMBOL_ISSUES:       return std::make_shared<ERC_ITEM>( libSymbolIssues );
    case ERCE_LIB_SYMBOL_MISMATCH:     return std::make_shared<ERC_ITEM>( libSymbolMismatch );
    case ERCE_FOOTPRINT_LINK_ISSUES:   return std::make_shared<ERC_ITEM>( footprintLinkIssues );
    case ERCE_FOOTPRINT_FILTERS:       return std::make_shared<ERC_ITEM>( footprintFilters );
    case ERCE_UNANNOTATED:             return std::make_shared<ERC_ITEM>( unannotated );
    case ERCE_EXTRA_UNITS:             return std::make_shared<ERC_ITEM>( extraUnits );
    case ERCE_DIFFERENT_UNIT_VALUE:    return std::make_shared<ERC_ITEM>( differentUnitValue );
    case ERCE_DUPLICATE_REFERENCE:     return std::make_shared<ERC_ITEM>( duplicateReference );
    case ERCE_BUS_ENTRY_NEEDED:        return std::make_shared<ERC_ITEM>( busEntryNeeded );
    case ERCE_MISSING_UNIT:            return std::make_shared<ERC_ITEM>( missingUnits );
    case ERCE_MISSING_INPUT_PIN:       return std::make_shared<ERC_ITEM>( missingInputPin );
    case ERCE_MISSING_POWER_INPUT_PIN: return std::make_shared<ERC_ITEM>( missingPowerInputPin );
    case ERCE_MISSING_BIDI_PIN:        return std::make_shared<ERC_ITEM>( missingBidiPin );
    case ERCE_UNCONNECTED_WIRE_ENDPOINT: return std::make_shared<ERC_ITEM>( unconnectedWireEndpoint );
    case ERCE_STACKED_PIN_SYNTAX:      return std::make_shared<ERC_ITEM>( stackedPinName );
    case ERCE_FIELD_NAME_WHITESPACE:   return std::make_shared<ERC_ITEM>( fieldNameWhitespace );
    case ERCE_EMPTY_LABEL_NAME: return std::make_shared<ERC_ITEM>( emptyLabelName );
    case ERCE_PIN_MAP_BAD_PAD: return std::make_shared<ERC_ITEM>( pinMapBadPad );
    case ERCE_PIN_MAP_UNMAPPED_PIN: return std::make_shared<ERC_ITEM>( pinMapUnmappedPin );
    case ERCE_PIN_MAP_DUPLICATE_PAD: return std::make_shared<ERC_ITEM>( pinMapDuplicatePad );
    case ERCE_PIN_MAP_STALE_PIN: return std::make_shared<ERC_ITEM>( pinMapStalePin );
    case ERCE_VARIANT_SYMBOL_INVALID:  return std::make_shared<ERC_ITEM>( variantSymbolInvalid );
    case ERCE_VARIANT_SYMBOL_INCOMPATIBLE: return std::make_shared<ERC_ITEM>( variantSymbolIncompatible );
    case ERCE_UNSPECIFIED:
    default:
        wxFAIL_MSG( wxS( "Unknown ERC error code" ) );
        break;
    }
 
    return nullptr;
}

void ERC_TREE_MODEL::GetValue( wxVariant& aVariant, wxDataViewItem const& aItem,
                               unsigned int aCol ) const
{
    SCH_EDIT_FRAME*           schEditFrame = static_cast<SCH_EDIT_FRAME*>( m_editFrame );
    const RC_TREE_NODE*       node = ToNode( aItem );
    std::shared_ptr<ERC_ITEM> ercItem = std::static_pointer_cast<ERC_ITEM>( node->m_RcItem );
    MARKER_BASE*              marker = ercItem->GetParent();
    wxString                  msg;
 
    auto getItemDesc =
            [&]( EDA_ITEM* aCurrItem, SCH_SHEET_PATH& aSheet )
            {
                SCH_SHEET_PATH curSheet = schEditFrame->GetCurrentSheet();
                wxString       desc;
 
                if( aSheet != curSheet )
                {
                    // Use the schematic-level setter to avoid the view side effects of
                    // SCH_EDIT_FRAME::SetCurrentSheet, which recreates the drawing sheet
                    // proxy with potentially stale page number state.
                    schEditFrame->Schematic().SetCurrentSheet( aSheet );
                    aSheet.UpdateAllScreenReferences();
                    {
                        desc = aCurrItem->GetItemDescription( m_editFrame, true );
                    }
                    schEditFrame->Schematic().SetCurrentSheet( curSheet );
                    curSheet.UpdateAllScreenReferences();
                }
                else
                {
                    desc = aCurrItem->GetItemDescription( m_editFrame, true );
                }
 
                return desc;
            };
 
    switch( node->m_Type )
    {
    case RC_TREE_NODE::MARKER:
        if( marker )
        {
            SEVERITY severity = ercItem->GetParent()->GetSeverity();
 
            if( severity == RPT_SEVERITY_EXCLUSION )
            {
                if( schEditFrame->GetSeverity( ercItem->GetErrorCode() ) == RPT_SEVERITY_WARNING )
                    msg = _( "Excluded warning: " );
                else
                    msg = _( "Excluded error: " );
            }
            else if( severity == RPT_SEVERITY_WARNING )
            {
                msg = _( "Warning: " );
            }
            else
            {
                msg = _( "Error: " );
            }
        }
 
        msg += ercItem->GetErrorMessage( true );
        break;
 
    case RC_TREE_NODE::MAIN_ITEM:
        if( marker && marker->GetMarkerType() == MARKER_BASE::MARKER_DRAWING_SHEET )
        {
            msg = _( "Drawing Sheet" );
        }
        else
        {
            msg = getItemDesc( schEditFrame->ResolveItem( ercItem->GetMainItemID() ),
                               ercItem->MainItemHasSheetPath() ? ercItem->GetMainItemSheetPath()
                                                               : schEditFrame->GetCurrentSheet() );
        }
 
        break;
 
    case RC_TREE_NODE::AUX_ITEM:
        msg = getItemDesc( schEditFrame->ResolveItem( ercItem->GetAuxItemID() ),
                           ercItem->AuxItemHasSheetPath() ? ercItem->GetAuxItemSheetPath()
                                                          : schEditFrame->GetCurrentSheet() );
        break;
 
    case RC_TREE_NODE::AUX_ITEM2:
        msg = getItemDesc( schEditFrame->ResolveItem( ercItem->GetAuxItem2ID() ),
                           schEditFrame->GetCurrentSheet() );
        break;
 
    case RC_TREE_NODE::AUX_ITEM3:
        msg = getItemDesc( schEditFrame->ResolveItem( ercItem->GetAuxItem3ID() ),
                           schEditFrame->GetCurrentSheet() );
        break;
 
    case RC_TREE_NODE::COMMENT:
        if( marker )
            msg = marker->GetComment();
 
        break;
    }
 
    msg.Replace( wxS( "\n" ), wxS( " " ) );
    aVariant = msg;
}
 
 
wxString ERC_ITEM::getItemDescription( EDA_ITEM* aItem, int aIndex,
                                       UNITS_PROVIDER* aUnitsProvider ) const
{
    SCH_ITEM*  schItem = dynamic_cast<SCH_ITEM*>( aItem );
    SCHEMATIC* sch     = schItem ? schItem->Schematic() : nullptr;
 
    const std::optional<SCH_SHEET_PATH>& itemSheet = ( aIndex == 0 ) ? m_mainItemSheet
                                                                     : m_auxItemSheet;
 
    if( !sch || !itemSheet.has_value() || sch->CurrentSheet() == *itemSheet )
        return RC_ITEM::getItemDescription( aItem, aIndex, aUnitsProvider );
 
    // Temporarily point the schematic at the affected item's sheet so per-instance
    // fields (notably the symbol reference) resolve to the same text the GUI ERC
    // dialog shows.  Mirrors the lambda in ERC_TREE_MODEL::GetValue.
    SCH_SHEET_PATH savedSheet  = sch->CurrentSheet();
    SCH_SHEET_PATH targetSheet = *itemSheet;
 
    sch->SetCurrentSheet( targetSheet );
    targetSheet.UpdateAllScreenReferences();
 
    wxString desc = RC_ITEM::getItemDescription( aItem, aIndex, aUnitsProvider );
 
    sch->SetCurrentSheet( savedSheet );
    savedSheet.UpdateAllScreenReferences();
 
    return desc;
}